332da1c283
This has been broken out of D104170 since it should be merged whether or not we go ahead with the module map changes. Differential Revision: https://reviews.llvm.org/D104175
87 lines
2.7 KiB
C++
87 lines
2.7 KiB
C++
// -*- C++ -*-
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef _LIBCPP___MEMORY_AUTO_PTR_H
|
|
#define _LIBCPP___MEMORY_AUTO_PTR_H
|
|
|
|
#include <__config>
|
|
#include <__nullptr>
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
|
#pragma GCC system_header
|
|
#endif
|
|
|
|
_LIBCPP_PUSH_MACROS
|
|
#include <__undef_macros>
|
|
|
|
_LIBCPP_BEGIN_NAMESPACE_STD
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_DEPRECATED_IN_CXX11 auto_ptr_ref
|
|
{
|
|
_Tp* __ptr_;
|
|
};
|
|
|
|
template<class _Tp>
|
|
class _LIBCPP_TEMPLATE_VIS _LIBCPP_DEPRECATED_IN_CXX11 auto_ptr
|
|
{
|
|
private:
|
|
_Tp* __ptr_;
|
|
public:
|
|
typedef _Tp element_type;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY explicit auto_ptr(_Tp* __p = 0) _NOEXCEPT : __ptr_(__p) {}
|
|
_LIBCPP_INLINE_VISIBILITY auto_ptr(auto_ptr& __p) _NOEXCEPT : __ptr_(__p.release()) {}
|
|
template<class _Up> _LIBCPP_INLINE_VISIBILITY auto_ptr(auto_ptr<_Up>& __p) _NOEXCEPT
|
|
: __ptr_(__p.release()) {}
|
|
_LIBCPP_INLINE_VISIBILITY auto_ptr& operator=(auto_ptr& __p) _NOEXCEPT
|
|
{reset(__p.release()); return *this;}
|
|
template<class _Up> _LIBCPP_INLINE_VISIBILITY auto_ptr& operator=(auto_ptr<_Up>& __p) _NOEXCEPT
|
|
{reset(__p.release()); return *this;}
|
|
_LIBCPP_INLINE_VISIBILITY auto_ptr& operator=(auto_ptr_ref<_Tp> __p) _NOEXCEPT
|
|
{reset(__p.__ptr_); return *this;}
|
|
_LIBCPP_INLINE_VISIBILITY ~auto_ptr() _NOEXCEPT {delete __ptr_;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY _Tp& operator*() const _NOEXCEPT
|
|
{return *__ptr_;}
|
|
_LIBCPP_INLINE_VISIBILITY _Tp* operator->() const _NOEXCEPT {return __ptr_;}
|
|
_LIBCPP_INLINE_VISIBILITY _Tp* get() const _NOEXCEPT {return __ptr_;}
|
|
_LIBCPP_INLINE_VISIBILITY _Tp* release() _NOEXCEPT
|
|
{
|
|
_Tp* __t = __ptr_;
|
|
__ptr_ = nullptr;
|
|
return __t;
|
|
}
|
|
_LIBCPP_INLINE_VISIBILITY void reset(_Tp* __p = 0) _NOEXCEPT
|
|
{
|
|
if (__ptr_ != __p)
|
|
delete __ptr_;
|
|
__ptr_ = __p;
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY auto_ptr(auto_ptr_ref<_Tp> __p) _NOEXCEPT : __ptr_(__p.__ptr_) {}
|
|
template<class _Up> _LIBCPP_INLINE_VISIBILITY operator auto_ptr_ref<_Up>() _NOEXCEPT
|
|
{auto_ptr_ref<_Up> __t; __t.__ptr_ = release(); return __t;}
|
|
template<class _Up> _LIBCPP_INLINE_VISIBILITY operator auto_ptr<_Up>() _NOEXCEPT
|
|
{return auto_ptr<_Up>(release());}
|
|
};
|
|
|
|
template <>
|
|
class _LIBCPP_TEMPLATE_VIS _LIBCPP_DEPRECATED_IN_CXX11 auto_ptr<void>
|
|
{
|
|
public:
|
|
typedef void element_type;
|
|
};
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
_LIBCPP_POP_MACROS
|
|
|
|
#endif // _LIBCPP___MEMORY_AUTO_PTR_H
|